Well pump



2 Sheets-Sheet l Ji' 2 |NvEN l ATTORNEYS III I ..4 IIIIII C. F. MOSELEY WELL PUMP Filed Feb. 2, 1940 ab' @away Spt. 23, 1941.

Sept. 23, 1941- c. F. MosELEY WELL PUMP Filed Feb. 2, 1940 2 Sheets-Sheet 2 @fyi INVENTOR 2 Maffay M573# AI'BgRNEYS chor a standing valve of a Patented Sept- 23, 1941 UNiTED STATES PATENT YFFICE.

WELL PUMP Charles F. Moseley, Bartlesville, Okla.

Application February 2, 1940, Serial No. 317,031

3 Claims.

This invention relates to new and useful improvements in pumps for deep wells, and more particularly, but not by way of limitation, to an improved arrangement of the standing valve of the pump.

Bottom hole oil pumps or working barrels, as they are commonly known in the oil industry, are usually secured to the lowermost section of well tubing by a threaded collar or the like. The

pumps are actuated by a string oi sucker rods suspended in the well tubing. Heretofore the standing valve spider in a conventional working barrel has been positively or directly connected to the working barrel housing by an annular shoulder, threads, or the like. In this manner there is a direct connection between the well tubing and the standing valve spider, and upon a downward movement of the working barrel plunger by the sucker rods to close the standing valve, all the weight of the oil previously pumped into the tubing acts upon the standing valve. This oil weight has a very detrimental Yeffect in causing an elongation or stretch of the steel tubing sections disposed in the casing of the well hole, which in turn causes a shortening of the plunger stroke of the working barrel. Furthermore, well holes are usually irregular or crooked, and in view of this the normally spaced tubing will contact the casing at various points. The oil weight in stretching the tubing causes a detrimental wear of the tubing by the rictional drag against the casing at the points of contact.

It is therefore an important object of this invention to eliminate the direct connection between the standing valve spider of a working barrel and the well tubing.

Another object of this invention is to provide a floating connection between the standing valve spider of the working barrel housing in order that the weight of the oil pumped into the tubing will not stretch the tubing.

And still another object of this invention is to provide a means for anchoring a standing valve of a working barrel independent of the working barrel housing in order to eliminate considerable strain and stretch of the sections of well tubing and prevent frictional drag against the casing.

And a further object of this invention is to anworking barrel in a Well hole, separate from the barrel housing, yet provide means where said standing valve and anchor can be easily pulled from the well hole.

Other objects and advantages oi the invention Will be evident from the following detailed description read in conjunction with the accompanying drawings which illustrate one form oi my invention.

Fig. 1 is a fragmentary sectional elevation of the preferred embodiment of the invention shown disposed in a well hole.

Fig. 2 is a View similar to Fig. 1 'showing the pump unitbeing pulled from the well.

Fig. Seis a sectional elevation of the lower part of the pumpshowing a modication for the standing valve arrangement. Y Y

Fig. 4 is an enlarged fragmentary sectional elevational view of a modification of the standing valveanchor. Y

Fig. 5 is a view taken on lines 5--5 of Fig. 3.

Referring to the drawings in detail, and more particularly to Fig. l., reference character 2 designates the casing of a well hole in which is disposed the usual tubing 4. The pump or working barrel housing 6 is secured to the lowermost section of tubing 4 by a threaded collar 8. The pump housing 6 includes the usual apertured plunger ID provided at its uppermost portion with an integral valve spider I2. The spider I2 is provided with a threaded projection ,I4 adapted to be secured to a string of sucker rods (not shown) for actuating the pump plunger. The top most portion of the plunger I0 is provided with a recess I6 acting as a valve seat for a ball valve I8 disposed within the spider. The valve I8 is usually termed the travelling valve and cooperates With the seat in closed position.

A standing or inlet valveis disposed in the lower portion of the housing 6 and comprises a spider 20, ball valve 22 disposed therein and cooperating With a recessed portion providing a seat 24 for the ball. It willbe apparent from Fig. 1 that the spider 20 includes cylindrical member 26 extending below the seat 24 to be threadedly connected at 28 to an apertured seat anchor 30 disposed below the housing. The outer periphery of the cylinder 26 is provided with an annular shoulder 32 for supporting suitable packing 34 anchored between the cylinder 26 and housing 6 to prevent leakage of displaced oil.

The seat anchor 30 is provided with an upwardly extending rim or flange 36 having threads 3B for securing a cylindrical hanger 4D. The hanger 4I) extends vertically upward from the seat anchor 30, and is provided at its uppermost end with projections or .shoulder portions 42 adaptedrto cooperate with shoulder portions 44 provided on the lowermost end of the housing for a purpose as will be hereinafter set forth.

-The anchor 30 is provided with a reduced portion 46 having outer threads 48 for receiving a cylinder'or pipe 49 extending 'to the bottom of the wellhole. The seat 30 is provided with an aperture 50 having threads 52 for receiving a bushing k54 for a purpose as will be hereinafter set forth.

Y From the foregoing it will be apparent that the standing valve spider including the elongated cyl-k inder 26 are not positively or directly connected 8. The standing valve structure is connected to Vto the working barrel housing 6, which in turn is directly connected to the tubing 4 by the collarl the bottom seat vanchor Sli, which in turn is supported in the well by the lower cylinder 49 resting on the bottom V.of the shot hole. The cylinder 49 is'provided with apertures 56 allowing discharge of oil from the shot hole therethrough.

In cases where the oil'in the shot hole is .not sumity of the bottom ofthe shotV hole. The seat which, in a pulling operation, are adapted to con- I tact the lower face' of shoulders 'lil for pulling the standing valve spider 5S and its cooperating structure from the well hole along with the hous- V ing 66. It will be apparentthat in this modifica'- tion all stretching or elongation is eliminated, since the standing lvalve is in no manner con# nected to the pump housing or tubing, but isY supported by the cylinder 5i).

Fig. 4 is a modified form of seat anchor utilized when itis desired to anchor the working barrel at some point in the casing other than in proxim u anchor 89 is provided with a threaded flange `82 cient to warrant the large cylinder .49; the bush-1i.4 ing 54 can be removed and replaced with a. .small er rapertured cylinder (not shown) resting on" Vthe bottom of the-wellfhole'for supportingthe seat anchor30. 1 Operation 'In the reciprocation ofv the Vplunger I 0` by the sucker rods, the' oil is periodically displaced through rthe( valves 22andil8 into the tubing 4 l above the pump. `On a down stroke .of the plunger l0, the oil previously 'displaced above the valve 22 opens valve i8 for displacing the oil into the tubing 4 above the valve i8. During this movement of the'plunger l0, the valve 22 is closed and allthe Weight of the oil previously displaced `by actuation of the plunger l0 is on the :standing I valve'22,Y seat anchor 3D .and cylinder 49. In this manner it `willjloe seen thatthe iioating vconnec- V tion between the housing 6, the standing valve f' for receiving a hanger 84 (partially shown) similar to thehanger as disclosed in the preferred embodiment. The seatk 8@ is likewise provided with an aperture 86 having threads 88 for receiving cylinder Si! (partially shown), andsimilar tothe cylinder 26 of the preferred embodiment. The outer periphery of the seat B is provided With tapered portions 92 adapted to co-Y operate with tapered portions 94 of slips 95. The slips 96 are provided with'outer serrations S8 for frictionally biting into the well casing lll .when in set position. Belly springs Ill2` extend downf ward from the slipsl for supporting` them in the casing |90 prior to theirradial expansion intoV spider 20, and valve 22 eliminates any positive or direct connection'with the tubing l4, which in turn eliminates any possibility of the oil weight stretchingthe numerous sections of .tubing dis-l In a pulling operation the valverl and plunger lll are pulled separately by the sucker rods for When it is desired replacements and' the like. to remove the,V standing valve 22 and anchor 3Q fromthe rwell hole, it is necessary to remove the tubing. and housing l.Y VThe shoulders v44 of the housing 6 in moving vertically upwardY contact the shoulders 42 Vof the hanger 40 to: pull the anchor and its complementary structure from the well hole (see Fig. 2). The hanger 40, in a pullingoperation, also acts as a guide for the Working barrel housing. Furthermore, it will be noted thatthe pump housing Vis provided with a plurality of aperturesir which allow bleeding of the oil in a pulling operation.

Referring to-Fig. 3 disclosing amodiiication,` the seat anchor 30 of the preferred embodiment iseliminated, and the cylinder 62 of the standing valve spider ES extends vertically downward in spaced relation to casing'S and rests on the -bottom of the shothole for supporting the valve. The lowermost portion Aof the inner periphery'of Vthe housing 64 is provided with projections 66 biting engagement v'with the Vcasing by the seat anchor Bil. In Fig.; 4 the'slips are shown as being run separately in the casing. However, it will be apparent' that they'could berun in with the tubing in any'conventional manner. Although not shown, it will be apparent that a standing .valve'spider and cylinder are arranged in the pump housing the same as inthe preferred embodiment, so the weight of the oil displaced acts upon the seat 80 and slips 98 in lieu of the tubing, thus preventing any stretchingoi:` the tubing.

Changes maybe made in the combination and arrangement of parts as heretofore set forth -in the specication 'and shown in the drawings, it being runderstood 'that any modification in the precise' embodiment of the invention may be made within the scope of the following claims without departing from the spirit What I claim is: Y i 1. In combination with a tubing'of an oil well, a pump housing secured to the lowermost section of the invention. -r

. thereof, a plunger arranged/for reciprocating movementr through the uppermost portion'of the housing, a travelling valvel cooperating Vwiththe plunger, an inlet valve disposed below the plunger, said housing surrounding the inlet valve vand adapted to telescope therewith, and means for supporting the inlet valve separate from the housing to prevent stretching of the tubing by the weight of the displaced oil.

2. In combination with a tubing of an oil well, a vpump housing secured to the lowermost section thereof, a plunger arranged for reciprocating movement through the upper portion of the housing, a

' travelling valve cooperating with the plunger, an

inletivalve disposed below theplunger, said housing surrounding the inlet valve and Yadapted to telescope therewith, an apertured seat anchor arranged. below the' housing for supporting the inlet valve'separate from the housing, anapertured Vcylinder'secured to the sea-t anchor and resting lon the bottom1of Vthe well for supportingpthe anchor, guide means secured to the anchor and adapted to surround the housing, and means on the guide cooperating with the meansyon the .lowermost portion of the -housing for removing the guide and anchor from'the Well.

3. In a bottom hole pump comprising a housing, a plunger arranged for reciprocating movement through the housing, a travelling valve cooperating with the plunger, an inlet valve spider disposed below the plunger, an inlet valve disposed in the spider, an elongated seat cooperating with the inlet valve, said housing surrounding the seat and valve and adapted to telescope therewith, means for supporting the inlet valve and seat independent of the housing, means for supporting the last-mentioned means in the Well hole, guide means secured to the supporting means, and means arranged on the guide means cooperating with the housing for removing the guide means and supporting means from the well hole. t

CHARLES F. MOSELEY. 

